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REFERENCE
126509
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MODEL CASE
Oyster, 40 mm, white gold
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BEZEL
Fixed, with engraved tachymetric scale, in 18 ct white gold
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WATER RESISTANCE
Waterproof to 100 metres / 330 feet
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MOVEMENT
Perpetual, mechanical chronograph, self-winding
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CALIBRE
4131, manufacture Rolex
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POWER RESERVE
Approximately 72 hours
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BRACELET
Oyster, three-piece solid links
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DIAL
Bright black and steel
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CERTIFICATION
Superlative Chronometer (COSC + Rolex certification after casing)
The tachymetric scale
With its tachymetric scale, its three counters and its pushers, the Cosmograph Daytona was designed to be the ultimate timing tool for endurance racing drivers. The bezel features a tachymetric scale to read average speed over a given distance based on elapsed time. This scale offers optimal legibility, making the Cosmograph Daytona the ideal instrument for measuring speeds up to 400 units per hour, expressed in kilometres or miles.
Bright black and steel dial
This model features a bright black and steel dial with snailed counters, gold applique hour markers and hands with a Chromalight display, a highly-legible luminescent material. The central sweep seconds hand allows an accurate reading of 1/8 second, while the two counters on the dial display the lapsed time in hours and minutes. Drivers can accurately map out their track times and tactics without fail.
